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Completed

NCT Number: NCT01647815

Ultrasound Comparison of the Surface of the Subclavian and the Axillary Vein Versus the Surface of the Subclavian Vein

The main objective of this study is the demonstration of an increase of over 50% of the surface visible on ultrasound (mm2) of the axillary vein and subclavian vein in arm abduction (90 °) and external rotation (90 °) with respect to the surface of the subclavian vein along the arm body.

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Key information

Conditions

Healthy Volunteers

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

CHU de Nîmes - Hôpital Universitaire Carémeau

Nîmes, 30029, France

About this study

The secondary objective of this study is to investigate the anatomical relationships of these veins with the subclavian artery, the brachial plexus and the pleura, and assess the depth of the vein to the skin. Specifically, the following will be assessed:

  • the depth of the vein (mm)
  • the length of the minor axis (mm)
  • the length of the major axis (mm)
  • artery-vein distance (mm)
  • vein-pleural distance (mm)
  • the distance of the brachial plexus (mm)

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • The volunteer must have given his/her informed and signed consent
  • The volunteer must be insured or beneficiary of a health insurance plan
  • The volunteer is 18 to 50 years old

Exclusion criteria

  • The volunteer is participating in another study
  • The volunteer is in an exclusion period determined by a previous study
  • The volunteer is under judicial protection, under tutorship or curatorship
  • The volunteer refuses to sign the consent
  • It is impossible to correctly inform the volunteer
  • The volunteer is pregnant, parturient, or breastfeeding
  • The volunteer has a contraindication for the exams in this study
  • Volunteer with a history of trauma or surgery in the axilla or the shoulder girdle
  • Volunteer with a known history of venous thrombosis in the axillary and / or subclavian veins

Treatment and study plan

Ultrasound measures

Procedure

Ultrasound will be used to measure the surfaces of the axillary and subclavian veins with the arms in different positions. Our goal is to compare the vein surface area available among different vein-position combinations. Our goal does not include testing specific devices.

Primary outcomes

  1. vein surface (mm^2), subclavian vein with arm along side the body

    Time frame: baseline (transversal); Day 0

  2. vein surface (mm^2), subclavian vein with arm in abduction and external rotation

    Time frame: baseline (transversal); Day 0

  3. vein surface (mm^2), axillary vein with arm along side the body

    Time frame: baseline (transversal); Day 0

Secondary outcomes

  1. Vein depth (mm), subclavian vein with arms along side the body

    Time frame: baseline (transversal); Day 0

  2. Length of minor axis (mm), subclavian vein with arms along side the body

    Time frame: baseline (transversal); Day 0

  3. Length of major axis (mm), subclavian vein with arms along side the body

    Time frame: baseline (transversal); Day 0

  4. Artery-vein distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

  5. Artery-vein distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

    Artery-vein distance is displayed in the section plane? = yes

  6. The vein-pleura distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

  7. Vein-pleura distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

    The vein-pleura distance is displayed in the section plane? = yes

  8. The distance to the brachial plexus is visualized in the sectional plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

  9. Distance to brachial plexus (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm along side the body.

    The distance of the brachial plexus is visualized in the sectional plane? = yes

  10. Vein depth (mm), subclavian vein with arm in abduction and external rotation

    Time frame: baseline (transversal); Day 0

  11. Length of minor axis (mm), subclavian vein with arm in abduction and external rotation

    Time frame: baseline (transversal); Day 0

  12. Length of major axis (mm), subclavian vein with arm in abduction and external rotation

    Time frame: baseline (transversal); Day 0

  13. Vein depth (mm), axillary vein with arm along side the body

    Time frame: baseline (transversal); Day 0

  14. Length of minor axis (mm), axillary vein with arm along side the body

    Time frame: baseline (transversal); Day 0

  15. Length of major axis (mm), axillary vein with arm along side the body

    Time frame: baseline (transversal); Day 0

  16. Artery-vein distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

  17. Artery-vein distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

    Artery-vein distance is displayed in the section plane? = yes

  18. The vein-pleura distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

  19. The distance to the brachial plexus is visualized in the sectional plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

  20. Vein-pleura distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

    The vein-pleura distance is displayed in the section plane? = yes

  21. Distance to brachial plexus (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of subclavian vein with arm in abduction and external rotation.

    The distance of the brachial plexus is visualized in the sectional plane? = yes

  22. Artery-vein distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

  23. Artery-vein distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

    Artery-vein distance is displayed in the section plane? = yes

  24. The vein-pleura distance is displayed in the section plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

  25. Vein-pleura distance (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

    The vein-pleura distance is displayed in the section plane? = yes

  26. Distance to brachial plexus (mm)

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

    The distance of the brachial plexus is visualized in the sectional plane? = yes

  27. The distance to the brachial plexus is visualized in the sectional plane? yes/no

    Time frame: baseline (transversal); Day 0

    Ultrasound of axillary vein with arm along side the body.

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Universitaire de Nīmes

Other

Registry information

Official study title

Ultrasound Comparison of the Surface of the Subclavian Vein (Arm in Abduction (90°) and External Rotation (90 °)) and the Surface of the Axillary Vein (Arms Along the Body) Versus the Surface of the Subclavian Vein (Arm Along the Body)

Acronym: AnatoAbord

Important dates

Study start
2012
Primary completion
2012
Study completion
2012
First posted
Jul 24, 2012
Registry last updated
Nov 19, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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